Brian Waites says his company About Darwin "let down" the tourism industry.

ABC News: 7PM Darwin

A Darwin guide who allegedly drove her tour group around while drunk is due to face court next month.

Northern Territory Police said a group of eight tourists got a "somewhat extreme taste of the Top End" when returning from a trip on Sunday, with their driver apparently intoxicated and behaving in an aggressive manner.

The owner of the About Darwin family tour company, Brian Waites, has made a public apology on behalf of the company and the driver.

According to a police statement, officers pulled the bus over on Darwin's main road in the city.

"As the passengers fled to the safety of their hotel rooms, the 45-year-old female driver was subject to a breath test," the statement said.

She blew 0.232 per cent, more than four times the legal limit.

"One passenger had genuine fears for her safety because of the driver's aggressiveness and apparent intoxication," the statement said.

"This had come to the attention of other road users as well."

I've let the people of Darwin down and I'd just like to apologise.

About Darwin owner Brian Waites

In a post on the NT Police Facebook page, motorists said they followed a tour minibus being driven by a woman about 5:00pm on Sunday and that it swerved "all over the road", although they were not sure if it was the same driver.

The tour guide has been charged with driving with a high-range blood alcohol content and is due to appear in court next month.

The future isn't bright: Tour company

Mr Waites spoke to the media this afternoon to apologise for the behaviour of the driver.

An embarrassment for Darwin: Facebook reaction

"I'm a tour guide/driver. Hate this with a passion. Can't believe someone would be so unprofessional. I honestly would have expected the passengers not to re-board or demand she stop. I certainly would have. Our industry has struggled long enough. We don't need this."

Max Duncan from Brisbane said it was disappointing:

"It might 'just be Darwin' but it is still a business that requires a level of common sense. Having worked in hospitality for over 20 years I find scenes like this extremely disappointing."

Katherine resident Heather Donald wrote:

"What an embarrassment for Darwin as a whole."

Incident not part of wider problem: Tourism Top End

The Northern Territory's peak tourism body said the incident was not representative of a wider problem.

Tourism Top End spokesman Trevor Cox said the industry was entering one of its busiest week's of the year and insisted it was an isolated incident.

"We'll be working with that business to build their professional standard," he said.